Droop Control Optimization for Multi-Terminal HVDC Transmission System

被引：0
作者：
Thoen, Astrid [1 ]
Svean, Magnus [1 ]
Lebas, Olivier [1 ]
Irnawan, Roni [1 ]
da Silva, Fillipe F. [1 ]
机构：
[1] Aalborg Univ, Dept Energy Technol, Aalborg, Denmark
来源：
2018 53RD INTERNATIONAL UNIVERSITIES POWER ENGINEERING CONFERENCE (UPEC) | 2018年
关键词：
DC voltage droop control; MTDC; HVDC technology; Droop control; Wind power; Upper lever control;
D O I：
暂无
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
This paper proposes a method to determine optimal voltage droop control values for converters in a VSC-based multi terminal HVDC system (MTDC). The modelled MTDC system is obtained by connecting a wind-farm to an existing point-to-point (PtP) cable connection between two onshore converter stations. The challenge with such arrangement is to control the share of power between the two onshore converters. In order to overcome this problem, the DC voltage droop control will be implemented. In the end of the paper, a guideline will be presented to dictate how the power is shared between two converters in a 3-terminal MTDC system. The guideline explain how to determine the optimal droop constants k(v), which is influenced by transmission losses, cable length between stations, converter limits (active power- and voltage limits) and their sensitivity regarding droop values. The results shows that different factors affect the choice of the droop constant.
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收藏
页数：6
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